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Update gray color checker

This commit is contained in:
daleclack 2024-05-05 10:58:47 +08:00
parent 943dfc8810
commit ec7b44b3f3
1 changed files with 5 additions and 5 deletions
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10
Gtk4/src/core/MainWin.cpp
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@ -46,9 +46,9 @@ static int get_gray_color(GdkPixbuf *pixbuf)
int red = 0, green = 0, blue = 0;
// Calculate the color of image of 20x20 pixels
for (int i = 0; i < 20; i++)
for (int i = 0; i < 10; i++)
{
for (int j = 0; j < 20; j++)
for (int j = 0; j < 10; j++)
{
guchar *p = pixels + j * rowstride + i * n_channels;
red += p[0];
@ -56,9 +56,9 @@ static int get_gray_color(GdkPixbuf *pixbuf)
blue += p[2];
}
}
red /= 400;
green /= 400;
blue /= 400;
red /= 100;
green /= 100;
blue /= 100;
// Calculate the gray number from the pixels
int gray = (red * 299 + green * 587 + blue * 114 + 500) / 1000;